#C9E451#C9E451

#C9E451 is a very light, vivid yellow-green. Relative luminance 0.685; OKLCH L 87.2% C 0.172 H 119.0°. Best body text is #000000 at 14.70:1 contrast (WCAG AA passes).

Color values

HEX	#C9E451
RGB	rgb(201, 228, 81)
HSL	hsl(71, 73%, 61%)
HSV	hsv(71, 64%, 89%)
CMYK	cmyk(11.8%, 0%, 64.5%, 10.6%)
CIE-LAB	lab(86.26, -28.39, 66.14)
CIE-LCH	lch(86.26, 71.98, 113.23°)
OKLab	oklab(87.18% -0.0833 0.1501)
OKLCH	oklch(87.18% 0.172 119)
XYZ	xyz(53.3169, 68.4987, 18.1958)
Luminance	0.6850 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C9E451 #6C51E4

analogous

#E4B551 #C9E451 #80E451

triadic

#C9E451 #51C9E4 #E451C9

tetradic

#C9E451 #51E4B5 #6C51E4 #E45180

square

#C9E451 #51E4B5 #6C51E4 #E45180

split-complementary

#C9E451 #5180E4 #B551E4

monochromatic

#88A219 #B5D721 #C9E451 #D9EC86 #EAF4BB

Accessibility & contrast

On white

1.43

#C9E451 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.70

#C9E451 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C9E451

14.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C9E451	#FFFFFF	#000000	##000000
##C9E451	1.00	1.43	14.70	14.70
#FFFFFF	1.43	1.00	21.00	21.00
#000000	14.70	21.00	1.00	1.00
##000000	14.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F2D83D

Deuteranopia (green-blind)

#EFD85C

Tritanopia (blue-blind)

#D4D8C6

Achromatopsia (no color)

#D8D8D8

Design tokens & code

CSS

--color: #c9e451;
/* rgb */ color: rgb(201, 228, 81);
/* oklch */ color: oklch(87.2% 0.172 119.0);

Tailwind

colors: {
  custom: {
    50: '#dcec89',
    500: '#c9e451',
    950: '#000000',
  },
}

SCSS

$custom: #c9e451;
$custom-light: #dcec89;
$custom-dark: #000000;

JSON

{
  "hex": "#c9e451",
  "rgb": {
    "r": 201,
    "g": 228,
    "b": 81
  },
  "hsl": {
    "h": 71.02,
    "s": 73.134,
    "l": 60.588
  },
  "oklch": {
    "l": 0.87176,
    "c": 0.17163,
    "h": 119
  },
  "luminance": 0.68498
}

Semantic roles & 50–950 ramp

primary

#C9E451

secondary

#4935A4

accent

#10D534

background

#FEFEFC

surface

#FCFDF4

border

#D5D5CE

text

#15160C

muted

#84847F

Preview Lab

Preview with #C9E451

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →